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Presents information on a study which analyzed water vapor deposition onto metal surfaces using a ramped electric field. Experimental details; Investigation of the influence of the amount of water coverage on tungsten; Utilization of a commercial quartz crystal deposition monitor to measure the layer thickness; Discussion of the adsorption of water as a function of the temperature of the tungsten substrate.

Deals with a study which investigated the behavior of lithium fluoride-coated metal anodes in pulsed electric fields. Experimental details; Characterization of film morphology; Interpretation of results.

A simple transmission electron microscope (TEM) suitable for lecture demonstrations is described. In this TEM electrons are created in a glow discharge between two parallel electrodes in air at a reduced pressure. The electrons are collimated by a small hole in the anode, focused by a solenoid that acts as an electromagnetic lens, and imaged on a thin layer of phosphor deposited inside an Erlenmeyer flask. An image of a biological sample placed between the source and the lens can be magnified about 20 times, The microscope uses inexpensive components that can be quickly assembled during a demonstration. The TEM provides a visual and memorable display that highlights phenomena such as mean-free-path, charged particle optics, electrical discharges, and cathodoluminescence. [ABSTRACT FROM AUTHOR]

A deposition fixture is described for placing proteins and nucleic acids onto field-emitter tips from aqueous solution. The fixture allows the coverage of these species on each of four tips to be independently selected by an appropriate choice of deposition parameters. Common rinsing volumes can be used without cross contamination of the tips. Four tips can be dosed in 20 min, the time previously taken to cover one tip with biological molecules. The fixture makes molecular deposition from aqueous solution both simple and routine. [ABSTRACT FROM AUTHOR]

Develops an instrument for investigating high electric field phenomena at small electrode separations. Use of field emission electron microscope imaging with the tip positioning ability of a scanning tunneling microscope; Electron tunneling behavior of the field emitter tip; Changes in Fowler-Nordheim behavior in the transition region.

Studies the ion production from lithium fluoride-coated field emitter tips. Mechanism of the ion production; Overview of the experiment; Theory of the mechanism for ion production.

Abstract. The laser ablation of polyimide was studied using 308nm laser irradiation is less than or equal to 225 mJ cm[sup -2]. Confocal Raman microscopy revealed the deposition of carbon surrounding the ablation crater, which consists of amorphous carbon with some crystalline features. Inside the crater, graphitic material was detected on top of the cones, very similar to the material from cw-Ar[sup +] ion laser irradiation. FT-Raman measurements reveal the presence of intermediates of the polyimide decomposition. Imaging-X-ray photoelectron spectroscopy confirmed the deposition of carbon material surrounding the ablation crater and showed that the oxygen and nitrogen contents of the remaining material decrease. [ABSTRACT FROM AUTHOR]